Inferring Strategic Voting

Abstract

We estimate a model of strategic voting and quantify the impact it has on election outcomes. Because the model exhibits multiplicity of outcomes, we adopt a set estimator. Using Japanese general-election data, we find a large fraction [63.4%, 84.9%] of strategic voters, only a small fraction [1.4%, 4.2%] of whom voted for a candidate other than the one they most preferred (misaligned voting). Existing empirical literature has not distinguished between the two, estimating misaligned voting instead of strategic voting. Accordingly, while our estimate of strategic voting is high, our estimate of misaligned voting is comparable to previous studies.

Keywords: strategic voting, set estimation, partially identified models, election

JEL Classification: D7, H8